/* SPDX-License-Identifier: GPL-2.0+ */
/*
* R - Car Display Unit CRTCs
*
* Copyright ( C ) 2013 - 2015 Renesas Electronics Corporation
*
* Contact : Laurent Pinchart ( laurent . pinchart @ ideasonboard . com )
*/
#ifndef __RCAR_DU_CRTC_H__
#define __RCAR_DU_CRTC_H__
#include <linux/mutex.h>
#include <linux/spinlock.h>
#include <linux/wait.h>
#include <drm/drm_crtc.h>
#include <drm/drm_writeback.h>
#include <media/vsp1.h>
struct rcar_du_group;
struct rcar_du_vsp;
/**
* struct rcar_du_crtc - the CRTC , representing a DU superposition processor
* @ crtc : base DRM CRTC
* @ dev : the DU device
* @ clock : the CRTC functional clock
* @ extclock : external pixel dot clock ( optional )
* @ mmio_offset : offset of the CRTC registers in the DU MMIO block
* @ index : CRTC hardware index
* @ initialized : whether the CRTC has been initialized and clocks enabled
* @ dsysr : cached value of the DSYSR register
* @ vblank_enable : whether vblank events are enabled on this CRTC
* @ event : event to post when the pending page flip completes
* @ flip_wait : wait queue used to signal page flip completion
* @ vblank_lock : protects vblank_wait and vblank_count
* @ vblank_wait : wait queue used to signal vertical blanking
* @ vblank_count : number of vertical blanking interrupts to wait for
* @ group : CRTC group this CRTC belongs to
* @ cmm : CMM associated with this CRTC
* @ vsp : VSP feeding video to this CRTC
* @ vsp_pipe : index of the VSP pipeline feeding video to this CRTC
* @ writeback : the writeback connector
*/
struct rcar_du_crtc {
struct drm_crtc crtc;
struct rcar_du_device *dev;
struct clk *clock;
struct clk *extclock;
unsigned int mmio_offset;
unsigned int index;
bool initialized;
u32 dsysr;
bool vblank_enable;
struct drm_pending_vblank_event *event;
wait_queue_head_t flip_wait;
spinlock_t vblank_lock;
wait_queue_head_t vblank_wait;
unsigned int vblank_count;
struct rcar_du_group *group;
struct platform_device *cmm;
struct rcar_du_vsp *vsp;
unsigned int vsp_pipe;
const char *const *sources;
unsigned int sources_count;
struct drm_writeback_connector writeback;
};
#define to_rcar_crtc(c) container_of(c, struct rcar_du_crtc, crtc)
#define wb_to_rcar_crtc(c) container_of(c, struct rcar_du_crtc, writeback)
/**
* struct rcar_du_crtc_state - Driver - specific CRTC state
* @ state : base DRM CRTC state
* @ crc : CRC computation configuration
* @ outputs : bitmask of the outputs ( enum rcar_du_output ) driven by this CRTC
*/
struct rcar_du_crtc_state {
struct drm_crtc_state state;
struct vsp1_du_crc_config crc;
unsigned int outputs;
};
#define to_rcar_crtc_state(s) container_of(s, struct rcar_du_crtc_state, state)
int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int swindex,
unsigned int hwindex);
void rcar_du_crtc_finish_page_flip(struct rcar_du_crtc *rcrtc);
void rcar_du_crtc_dsysr_clr_set(struct rcar_du_crtc *rcrtc, u32 clr, u32 set);
#endif /* __RCAR_DU_CRTC_H__ */
Messung V0.5 in Prozent C=98 H=89 G=93
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-10-04)
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